21767954

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{7681}}^1$

素因数の和:7805

約数の個数: 16

約数和(自身を含む): 35490840

約数和(自身を除く): 13722886

約数列:

[1, 2, 13, 26, 109, 218, 1417, 2834, 7681, 15362, 99853, 199706, 837229, 1674458, 10883977, 21767954]

約数ペア:

[(1, 21767954), (2, 10883977), (13, 1674458), (26, 837229), (109, 199706), (218, 99853), (1417, 15362), (2834, 7681)]